<template>
    <el-card class="box-card">
      <div slot="header" class="clearfix">
        <span>重置密码</span>
      </div>
      <!-- 表单 -->
      <el-form :model="pwdForm" :rules="pwdFormRules" ref="pwdFormRef" label-width="100px">
        <el-form-item label="原密码" prop="old_pwd">
          <el-input v-model="pwdForm.old_pwd" type="password"></el-input>
        </el-form-item>
        <el-form-item label="新密码" prop="new_pwd">
          <el-input v-model="pwdForm.new_pwd" type="password"></el-input>
        </el-form-item>
        <el-form-item label="确认新密码" prop="re_pwd">
          <el-input v-model="pwdForm.re_pwd" type="password"></el-input>
        </el-form-item>
        <el-form-item>
          <el-button type="primary" @click="updatePwdFn">修改密码</el-button>
          <el-button @click="resetFn" >重置</el-button>
        </el-form-item>
      </el-form>
    </el-card>
  </template>

<script>
import { updatePwdAPI } from '@/api'
export default {
  name: 'UserPwd',
  data () {
    // 检测新旧密码是否相同
    const samePwd = (rule, value, callback) => {
      if (value === this.pwdForm.old_pwd) {
        return callback(new Error('新旧密码不能相同！'))
      }
      callback()
    }
    // 检测两次新密码是否一致
    const rePwd = (rule, value, callback) => {
      if (value !== this.pwdForm.new_pwd) {
        return callback(new Error('两次新密码不一致！'))
      }
      callback()
    }
    return {
      // 表单的数据对象
      pwdForm: {
        old_pwd: '',
        new_pwd: '',
        re_pwd: ''
      },
      // 表单的验证规则对象
      pwdFormRules: {
        old_pwd: [
          { required: true, message: '请输入密码', trigger: 'blur' },
          { pattern: /^\S{6,15}$/, message: '密码长度必须是6-15位的非空字符串', trigger: 'blur' }
        ],
        new_pwd: [
          { required: true, message: '请输入新密码', trigger: 'blur' },
          { pattern: /^\S{6,15}$/, message: '密码长度必须是6-15位的非空字符串', trigger: 'blur' },
          { validator: samePwd, trigger: 'blur' }
        ],
        re_pwd: [
          { required: true, message: '请再次确认新密码', trigger: 'blur' },
          { pattern: /^\S{6,15}$/, message: '密码长度必须是6-15位的非空字符串', trigger: 'blur' },
          { validator: rePwd, trigger: 'blur' }
        ]
      }
    }
  },
  methods: {
    // 重置按钮
    resetFn () {
    //   this.userForm.nickname = ''
    //   this.userForm.email = ''
    // el-form 提供了一个重置表单(并且还能重置报错提示)
      this.$refs.pwdFormRef.resetFields()
    },
    // 密码更新按钮
    updatePwdFn () {
      this.$refs.pwdFormRef.validate(async valid => {
        if (valid) {
          // 通过校验
          const { data: res } = await updatePwdAPI(this.pwdForm)
          if (res.code !== 0) return this.$message.error('原密码不正确')

          this.$message.success('更新密码成功！')

          // 重置密码(被动退出)
          // 清空token
          this.$store.commit('updateToken', '')
          // 清空用户信息
          this.$store.commit('updateUserInfo', {})
          // 强制跳转到登录页面
          this.$router.push('/login')
        } else {
          // 未通过校验
          return false
        }
      })
    }
  }
}
</script>

  <style lang="less" scoped>
  .el-form {
    width: 500px;
  }
  </style>
